1158162965 has 4 divisors (see below), whose sum is σ = 1389795564. Its totient is φ = 926530368.

The previous prime is 1158162947. The next prime is 1158162977. The reversal of 1158162965 is 5692618511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 623351089 + 534811876 = 24967^2 + 23126^2 .

It is a cyclic number.

It is not a de Polignac number, because 1158162965 - 2¹⁶ = 1158097429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115816292 + ... + 115816301.

It is an arithmetic number, because the mean of its divisors is an integer number (347448891).

Almost surely, 2^1158162965 is an apocalyptic number.

It is an amenable number.

1158162965 is a deficient number, since it is larger than the sum of its proper divisors (231632599).

1158162965 is an equidigital number, since it uses as much as digits as its factorization.

1158162965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231632598.

The product of its digits is 129600, while the sum is 44.

The square root of 1158162965 is about 34031.7934437784. The cubic root of 1158162965 is about 1050.1626248490.

The spelling of 1158162965 in words is "one billion, one hundred fifty-eight million, one hundred sixty-two thousand, nine hundred sixty-five".